| 摘要 |
PROBLEM TO BE SOLVED: To accurately fill a chemical showing the dissolved oxygen eliminating effect into a boiler water system. SOLUTION: In this method of eliminating dissolved oxygen from the boiler water system, quantity of the chemical 9 to be added to the water 2 to be supplied to the boiler is decided on the basis of a measurement value obtained by measuring concentration of the dissolved oxygen in the steam condensed water 6 obtained from the steam W<SB>3</SB>generated from the boiler 3. Addition quantity of the chemical 9 is automatically controlled on the basis of the electric signal S from a dissolved oxygen meter 7. COPYRIGHT: (C)2003,JPO
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